Davenport bed



N. HALLBERG DAVENPORT BED Original Filed Feb. 7, 1934 2 Sheets-Sheet lMay 18, 1937. HALLBERG 2,080,474

DAVENPORT BED Original Filed Feb. 7, 1934 I 2 Sheets-Sheet 2''ll'.4,,"4i': ,44,1 42 J 5 0, 9

I (mlMWMW, H(MINIMUM/MilHW! I [ll/e735? 2 armn/ffallbef Patented May 18,1937 UNETED STATES ATEN'i' OFFICE Application February 7, 1934, SerialNo. 710,048 Renewed March 23, 1937 13 Claims.

This invention relates to a new and improved davenport bed which isconvertible so that when the parts are in one position they constitute adavenport and when in a second position they I) constitute a bed.

' It is an object of this invention to provide a relatively simpleconstruction which will be highly practical and efficient in service andwill be subject to conversion to form either a davenport or 10 a bed byrelatively simple and easy operation and by a new and improvedmechanical movement.

It is a further object of this invention to provide two box springsections hinged together, which in one position form the seat and back15 cushions for a davenport and in the converted position, present theirreverse sides as spring supports for a bed mattress.

It is a further object of this invention to provide a separate andindependent bed mattress which automatically presents itself in properrelationship on the box spring sections when the parts are converted toform a bed and which is automatically folded out of sight into theinterior spaces of the davenport when the bed is so converted.

It is a further object of this invention to provide a new and improvedmechanical movement for the box spring sections and new and improvedlink and operating mechanism therefor.

It is a further object of this invention to provide a davenport of theabove described type, the two box spring sections of which are connectedfor positive joint movement whereby the bed forming position is assumedautomatically upon moving either one of the parts in the properdirection. As an incident to the last stated object it is a furtherobject to so construct the parts that in converting to the bed position,gravity will assist in the setting up movement and yet the 40 automaticmovement of the outer box spring section will act to counterbalance theforce of gravity.

Stated differently, it is an object of this invention to provide theparts of such construction and arrangement that the movement thereof inconverting the davenport to a bed and vice versa is positive andautomatic in the sense that all of the parts are forced to move togetherin the desired manner and in addition, are partially balanced so thatthe converting movement is accomplished with the least amount of force.

It is a further object of this invention to provide a novel means formounting the bed mattress whereby the mattress is always held tightlyand 55 automatically presents itself coextensive with the box springsections when the parts are moved to bed position.

A further object is to provide a convertible davenport bed having partsfor cooperation with the mattress and bed clothes by which the bedclothes are held and maintained in proper position in a neat, tucked-incondition during the conversion of the parts to a davenport and viceversa and while being used as a davenport.

A further object of this invention is to provide in conjunction with theother elements constituting this invention, a new and improved type ofbox spring, whereby the sections thereof will present cushion surfaceson their opposite sides and with an improved and more efficientarrangement of springs mounted therein providing a maximum springsupport for the interior spaces of the box spring.

These and other objects not specifically enumerated are contemplated forthis invention as will readily appear to one skilled in the art as thefollowing description proceeds. The detailed description may be moreclearly understood if read in connection with the accompanying drawingsin which- Figure 1 is a perspective view of the apparatus of thisinvention showing the parts in bed forming relationship;

Figure 2 is a transverse view partly in cross section, showing the partsin davenport position;

Figure 3 is a view similar to Figure 2, showing the parts in bed formingposition;

Figure 4 is a view similar to Figures 2 and 3 showing the parts in anintermediate position as when the davenport is being converted to a bedor vice versa;

Figure 5 is an enlarged elevational view partly in cross section, of thebox spring sections and mattress when in bed-forming position;

Figure 6 is a transverse view partly in cross section taken on the line6-6 of Figure 5 and looking in the direction of the arrows;

Figure '7 is a plan view partly in cross section taken on the line L-iof Figure 5 and looking in the direction of the arrows, and,

Figure 8 is an enlarged elevational view in cross section, showingonecorner of the mattress and associated box spring section together withmeans by which the mattress is slidably held for proper positioning ofthe mattress during use as a davenport and a bed.

By referring to the drawings, it will be noted that the presentinvention is illustrated as embodied in an article of furniturecomprising a frame part it, composed of end portions H and I2 5connected by means of a front brace I3, and the metal back metal back I4may be formed of any suitable material and although it is shown as asmooth surfaced plate in the drawings, this invention contemplates thatit may be formed with a corrugated contour in order to provide airpassages for ventilation of the bed clothing when the parts are indavenport position.

The end members II and I2 are made of relatively stout material and maybe of any desired construction but are here shown as comprising sidearms for the davenport and having feet I5, on which the davenport bedrests. These end members may be upholstered or not, according to theparticular type of davenport desired. On the inside of the two endportions in substantially the position shown in Figures 2 and 4inclusive, is a pivot I6. Mounted on pivot I6 is a box spring section II which is provided on one side with an upholstered cushion I3 servingas a seat for the davenport. A second box spring section I 9 is pivotedto section I! by means of a pivot 20' whereby the two box spring partsmay jointly serve, in the position shown in Figure 2, as the seat andback of a davenport. Pivots 20 are mounted on the edge of the frameparts 42 of the box spring sections. Section I! is likewise upholsteredas at 2| to form a cushion back for the davenport.

It is preferable, but not necessary for the upholstered seat I8 to beremovable as shown in Figures 3 and 4 because section I8 is invertedwhen the davenport is converted to form a bed. Box spring sections I!and I9 have abutting portions 2| as shown in Figures 2 and 4 whichdetermines their angular relationship when in position to form adavenport and also have abutting portions 22 which meet as shown inFigure 3 to fix them in straight line position when converted to form abed.

The box spring elements may be of any suitable construction but as anadditional part of this invention it is proposed that they beconstructed in the manner clearly illustrated in Figures 5 to 8inclusive.

From an inspection of these drawings it will be noted that each sectioncomprises a pair of side supports42, which serve as side frame parts andon which are mounted a pair of oppositely disposed angle brackets 43.These brackets serve as supports for cross bars 44 which are secured tothe angle brackets by rivets, bolts or similar attaching means, and maybe of metal or any other suitable material. Bars 44 serve as supportsand mountings for coil springs 45, which according to this improvement,are arranged in a manner shown in Figures 5 to 7 inclusive. From aninspection of these drawings, it will be noted that each cushion surfaceof the spring sections is provided with its own supporting springs. Itwill be noted that the springs are arranged in staggered relationshipand are preferably of conical formation whereby a maximum number ofsprings can be mounted in the space provided.

The supporting bars 44 are likewise staggered so as to properly serve assupports for the staggered springs. The outer ends of the individualsprings are located at approximately the position to represent the outercontour of the box spring sections and each is provided with a marginwire 46, which is properly tied to its supporting coil springs. Eachsection so made up may be placed under slight compression and encased bya suitable cloth covering 41 in a manner now common I4. It is to beunderstood that the in the formation of box springs. It will be notedthat each box spring thereby presents cushion surfaces on both sides.The two hinged box spring sections are caused to move together in aprescribed manner by means of a mechanical link mechanism connected tocontrol their movement.

In each of the end members I I and I2 adjacent the location of the hingeI6, is a cam slot 23 as shown in Figures 2 to 4, inclusive. It will benoted that this slot is arcuate in shape and terminates at its upper endwith a rounded portion of larger diameter than the width of the slot.Positioned in the slot is an oval lug 24 which is fixed to the end oflever 25 mounted on the pivot 26, carried by the box spring section I9.It will readily appear that due to the arcuate shape of the slot theoval cam 24 on the end of the lever 25 will be caused to pass freelytherealong when the parts are moved to the position shown in Figure 4.In other words, throughout the first ninety degrees of movement, the boxspring elements I1 and I 9 move bodily together on the pivot IS withoutrelative movement therebetween. However, upon reaching the positionshown in Figure 4, it will be noted that the lug 24 is caused to passinto the circular top portion of slot 23 which prevents further upwardmovement.

After the oval lug 24 has passed into the circular top portion of theslot 23 and rotation thereof is effected by the movement of the parts tothe bed forming position shown in Figure 3, the oval lug is rotated andis thereby caused to assume a position whereby it cannot be moved intothe lower arcuate slot. This is because the greatest dimension of thelug is greater than the width of the slot. The cam therefore acts toconfine the movement of pivot 26 in an are around the upper portion ofthe slot 23 as a center, wherefore further movement causes the sectionsI8 and I9 to straighten out and finally assume the position shown inFigure 3. It will be noted that the center of gravity of the twosections I1 and I9 considered as a unit, is to the right hand side ofthe pivot I6 as shown in Figure 4, and therefore gravity will assist incausing the parts to move to the bed forming position. However, theassumption of this position involves a constant pull on pivot 26 whichin a sense lifts the end of section I9 to the straight line position.This action takes considerable force and therefore serves tocounterbalance the normal tendencies of gravity in bringing the parts tobed forming position. This produces a balanced action for the movementof the parts.

Lever 25 has its end extending as at 2! beyond the pivot 26 and haspivotally attached thereto, a link 28 which is connected to the leg 29pivotally mounted on the box spring section I9. The link 28 and leg 29are so constructed and arranged that the lever 25 in its movement to theposition shown in Figure 3, causes the leg 29 to straighten to avertical position to serve as a support for the outer end of box springsection I9. It is to be understood that this mechanism is duplicated atthe other end.

This invention further contemplates the use of tortional coil springs 30and 30' around pivot I6 which springs are wound in a manner to urge thespring section I! to the vertical position shown in Figure 4. Hence theaction of spring 30 is that of assisting the movement from the davenportposition. shown in Figure 2 to the intermediate position shown in Figure4, whereas the action of the spring 30 assists in moving the section I1from the bed forming position of Figure 3, to the vertical positionshown inFigure 4. This latter movement is also assisted by a tortionalspring it, which is mounted at the pivot 26, for urging the box springsections to the angular position wherefore through the action of thelever 25, the spring force tending to bring the sections to the angularposition, also tends to move the box spring section I! to the positionshown in Figure 4. e

A mattress 3i is provided which has one end fixed as at 32, to the upperportion of the box spring section it, whereas its other end is slidablymounted with respect to section I! so as to permit the box springsections to separate at the bed forming surface as shown in Figure l andyet permit the mattress to assume a coextensive position in bed formingposition as shown in Figure 3. Y The mattress 3| is therefore providedon one end with a frame part 33 which comprises end plates and atransverse bar adapted to under-lie the end of the mattress. The endplates are provided with lugs 35 slidably mounted in slots 35 in the endportion of the box spring portion ii. The lugs 34 are pressed with coilsprings 36 tending to urge them in the left hand direction as shown inFigure 3, or in that direction which will cause the mattress to extendand assume a position coextensive with the box spring element in bedforming position. The movable frame 33 will slide in the slots 35, whenthe parts are moved to davenport position, by the pull on the mattresscaused by the space created at the hinge. This movement causes acompression of the spring 36. When the parts are moved to the bedforming position as shown in Figure 3, it will readily appear that thespring 36 will cause a movement of the frame to automatically bring themattress to coextensive position on the box spring sections.

The mattress is preferably fixed at one end of the box spring as at 32by means of an opening located through the corner of the mattress inwhich is positioned a coil spring 5! having an extending end 52 providedwith a hook for extending through and engaging with a portion of the boxspring frame. This serves to hold the mattress in place and yet permitsthe same to be yieldingly lifted so as to place thereunder, thenecessary bed clothing in making up a bed. The holding spring can belocated in any preferred position with respect to the mattress butpreferably so as to leave an adequate margin for the properaccommodation of the under folds of the bed clothing. Any number of thesprings may be used to effect the desired anchoring of the mattress. Theopposite end of the mattress is held by a similar spring 52, as clearlyshown in Figure 8, the anchoring end of which however, attaches to thesliding bar of the frame part 33. Here also an upward yielding movementof the mattress is permitted for the accommodation of bed clothing whileat the same time this end of the mattress is slidably mounted for thepurpose above described.

Although springsare here shown, any suitable yielding attachment iscontemplated.

The accommodation of the bed clothing is further assisted by means of astrip or curtain 55, of canvas or like material, which is attached tothe spring section at one end and to the sliding bar 33 at its otherend. This curtain is preferably coextensive with the mattress and servesto separate the bed clothing from the underlying spring sections wherebyto assist in the maintenance of the bed clothing in the properpositionduring the conversion movement from the davenport to the bedforming positions and vice versa. It will be obvious that the clothingwhich has been tucked in will occupy the space between the mattress andthe curtain and be free from any disturbing frictional contactoccasioned by the movement of the parts.

In operation, to convert the davenport into a bed, it is merelynecessary to grasp the back section of the davenport at the top end todraw it forward until the parts have assumed the position shown inFigure 4. The movement of the parts through this ninety degrees isassisted by the tortional spring 30. Thereafter the movement is in thenature of a balanced movement so that the two sections can be forcedfurther toward the bed forming position without danger or liability ofthe relatively heavy parts falling onto the operator. The action ofgravity will assist in the movement but a counterbalancing effectis-provided in the lifting action effected by lever 25 pulling sectionl9 into the horizontal position.

Furthermore,

the movement from the position of Figure 4' to the position of Figure 5is resisted I somewhat by the tortional springs 30 and 40, both of whichtend to hold the parts in the position shown in Figure l. Bedsconstructed in accordance'with this invention may be either single ordouble or may be designed for occupancy in the longitudinal direction asshown in Figure l, or at right angles thereto with the head of the bedtoward the metal back M.

It is to be noted that the box spring sections l1 and i9 jointly providea continuous box spring for the bed without the disadvantage ofintermediate braces at the location of the hinge. In restoring the bedto a davenport it is merely necessary to lift the outer edge until theparts assume the position in Figure 4.

In the reverse direction of movement, the balanced action is alsoeffective whereby the required movement is relatively simple. Thereafterthe parts may be safely dropped into the davenport position shown inFigure 2. The bed mattress is thereby placed in the interior of thedavenport entirely out of sight, and is ready to beautomaticallypresented when the bed is set up. Also the mattress and springconstruction provides for the maintenance of the mattress at all timeswhile at the same time, permitting the insertion of the proper bedclothing between the mattress and the underlying curtain. By the upwardyielding of the mattress, the bed clothing can be properly placed and itis there maintained by the protecting action of the curtain whichremoves it from disturbing frictional contact with the spring sectionsduring the conversion of the parts.

I claim:

1. A davenport bed comprising in combination a frame, a reversible boxspring section pivoted in said frame, and adapted to present one side asa davenport seat and the opposite side as a bed section, a second boxspring section pivotally'connected to said first named section, and alink pivoted to said second section having an extended end mounted foroperation in a cam slot in said frame.

2. A davenport bed comprising in combination a frame, a reversible boxspring section pivoted in said' frame, and adapted to present one sideas a davenport seat and the opposite side as a bed section, a second boxspring section pivotally connected to said first named section, and alink pivoted to said second section having an extended end mounted foroperation in a cam slot in said frame, said cam slot permitting bodilymovement of said second section with said first section forapproximately ninety degrees but therebeyond causing relative movementbetween said sections.

3. In a davenport bed the combination of a frame, comprising spacedends, a seat section pivoted between said ends adapted to present oneface as a davenport seat and its reverse face as a bed section, a secondbox spring section pivoted to said first section and removable therewithbut subject to controlled movement, the movement of said second sectionbeing controlled by a link having one end pivoted to said section andthe other end mounted for operation in a cam slot in said frame.

4. A davenport bed of the character described comprising in combinationa frame, a spring section pivotally mounted in said frame and adapted topresent its opposite surfaces as cushioned supporting surfaces, a secondspring section pivotally connected by said first spring section, a camslot in said frame, and a link pivoted to said second section having anextended end operatively associated with said cam slot, a portion ofsaid cam slot being substantially concentric with the pivot of saidfirst spring section.

5. A davenport bed of the character described comprising in combinationa frame, a spring section pivotally mounted in said frame and adapted topresent its opposite faces as cushioned supporting surfaces, a secondspring section pivotally connected by said first spring section, a camslot in said frame, and a link pivoted to said second section having anextended end operatively associated with said cam slot, a portion ofsaid cam slot being substantially concentric with the pivot of saidfirst spring section, and positioned so that a portion of the movementof said section permits the free sliding of said link in said slot, buta further movement thereof forces a pivotal movement between saidsections.

6. A davenport bed of the character described comprising in combinationa frame and a pair of pivoted box spring sections mounted in said frame,disposed with an angular space therebetween when in davenport position,a mattress attached to one of said sections at one of its ends andhaving a sliding connection with the opposite end of the other of saidsections wheremay yield and bend with said sections and bridge saidangular space.

7. In a davenport bed of the character dea frame, a pair of pivoted boxspring sections mounted in said frame adapted to present faces on bothsides as cushion supports in means for providing a supporting leg forthe outer end of said section.

8. A davenport bed of the character described, comprising a frame, apair of pivoted box spring sections mounted in said frame, constructedto provide an angular space adjacent the mattress when said sections areangularly disposed to form a seat and back cushion for a davenport, abed mattress attached to one of said sections and having a yieldingconnection with the opposite of said sections whereby it automaticallyassumes a position coextensive with said sections when said sections arepositioned to form a bed and automatically yields to bridge said spacewhen said parts are positioned to form a davenport.

9. Adavenport bed of the character described comprising in combination aframe and a pair of pivoted box spring sections mounted in said frame, amattress attached to one of said sections at one of its ends and havinga sliding connection with the opposite end of the other of saidsections, said sliding connection including a spring pressed barunderlying the end of said mattress.

10. A davenport bed of the character described comprising in combinationa frame and a pair of pivoted box spring sections mounted in said frame,a mattress attached to one of said sections at one of its ends andhaving a sliding connection with the opposite end of the other of saidsections, said sliding connection including a spring pressed barunderlying the end of said mattress, and a curtain coextensive fixed atspring sections, and at its other end to said bar.

11. A davenport bed of the character described, comprising a frame, apair of pivotally connected box spring sections mounted in said frame,said sections being reversible to present one of their surfaces for useas a bed and their opposite surfaces for use as cushions of a davenport,a link pivotally connected to one of said sections and having at itsother end a connection with said frame, said last named connectionproviding lost motion throughout part of the movement of said sectionswith respect to said frame and a restraining pivotal movement for thebalance of the movement of said section with respect to said frame.

12. In a davenport bed of the character described, the combination of-aframe, a box spring section pivoted on a substantially central axis insaid frame, and a second box spring section pivoted to said first boxspring section, said second box spring section being free to move bodilywith said first box spring said box spring sections when said first boxspring section is moved beyond the vertical trolled during conversion.

NORMAN HALLBERG.

